| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Registration plate lamp issues | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Headlamp insecure (4.1.1 (c)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Brake hose excessively deteriorated | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride rear sprocket loose |6.2.1h| | 2 |
| All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Brake grabbing severely (1.2.1 (c)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Central Rear Lower Rear reflector missing no rear reflector (4.8.2 (a) (ii)) | 1 |
| Offside Front Lower Brake excessively binding front brake badly binding on roller test (1.2.1 (f)) | 1 |
| Front position lamp does not illuminate immediately when switched on side light inop. |1.1.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Drive chain sprocket worn to excess rear sprocket loose |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake component modification adversely affecting braking performance RENEWED STRONGER REAR BRAKE SHOE SPRINGS (1.1.21 (d) (ii)) | 1 |
| Offside Front Direction indicator incorrect colour shows white |1.5.1b| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Brake lever is damaged and the brake cannot be readily applied sharp end on lever |3.1.3c| | 1 |
| Motorcycle structure cracked front screen cracked and loose |6.1.1a| | 1 |
| Nearside Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Rear suspension bush has excessive free play swinging arm bush |2.4.A2a|i|| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure chaine adjustment locknut loose (5.3.3 (a) (i)) | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Brake excessively binding front (1.2.1 (f)) | 1 |
| Brake excessively binding rear (1.2.1 (f)) | 1 |
| Brake master cylinder leaking leaking at sight glass (1.1.10 (b) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Centre Rear Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Nearside Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Throttle operating incorrectly sticks open |6.2.1f| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Offside Front Upper Brake hose fouling hose fouling on shock |3.2.B3b| | 1 |
| Front Shock absorber has a serious fluid leak fork seals |5.3.2 |b|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride sprocket |6.2.1h| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected HEAD BEARING NUT LOOSE (2.2.2 (f) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted SPLIT LINK IN WRONG DIRECTION (6.1.7 (j) (i)) | 1 |
| Headlamp incorrect colour and formation (4.1.4 (a)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Front position lamp deteriorated and function impaired side light not working |1.1.1b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front shock absorber seal failed and leaking oil forks |2.3.3| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride sprocket bolt |6.2.1h| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp operation wrong way round |1.2.2b|i|| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Offside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Direction indicator incorrect colour lens missing (4.4.3 (a)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Front Steering headbearing excessively stiff or notchy NOTCHY (2.2.2 (f) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Headlamp aim not tested Due to dipped beam not working (4.1.2 (b)) | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension bolt hitting swingarm |2.4.A.3a| | 1 |
| Brake locking device missing rear brake arm |3.2.A1e| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Stop lamp not working FRONT BRAKE LIGHT NOT OPERATIONAL. (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working REAR BRAKE LIGHT NOT OPERATIONAL. (4.3.1 (a) (ii)) | 1 |
| Indicator switch inoperative L/H INDICATOR OPERATION FAULTY ON SWITCH CONTROL. (4.4.2 (a) (ii)) | 1 |
| Headlamp not working on dipped beam FRONT HEADLIGHT DIPPED BEAM NOT OPERATING. (4.1.1 (a) (ii)) | 1 |
| Headlamp insecure MAIN HEADLIGHT INSECURE IN FIXINGS. (4.1.1 (c)) | 1 |
| Brake lagging in operation REAR BRAKE OPERATION WEAK ON RETURN OPERATION. (1.2.1 (d)) | 1 |
| Drive chain excessively tight, so that it is likely to fail DRIVE CHAIN BADLY WORN AND TIGHT IN OPERATION. (6.1.7 (k) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear suspension bearing has excessive free play (2.4.A2a(i)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Fuel system component leaking Carb area (6.1.3 (b) (i)) | 1 |
| Registration plate issues | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Suspension arm ball joint excessively worn swing arm pivot (5.3.4 (a) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Suspension arm pin or bush likely to become detached Swinging arm loose (5.3.4 (a) (ii)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Suspension arm pin or bush excessively worn swinging arm pivot. (5.3.4 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear suspension component loose rear swing arm pivot bolt loose |2.4.A.1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Suspension arm ball joint excessively worn swing arm bush (5.3.4 (a) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen led bulb fitted (4.1.2 (a)) | 1 |
| Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Floor brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Suspension component pin or bush excessively worn swinging arm (5.3.4 (a) (i)) | 1 |